单相动态电压调整器锁相环研究  

Research on Phase-locked Loop of Single-phase Dynamic Voltage Regulator

作　　者：王甫 彭偲达 况华 覃日升 韩浩博 Wang Fu;Peng Cai-da;Kuang Hua;Qin Ri-sheng;Han Hao-bo

机构地区：[1]云南电网有限责任公司曲靖供电局,云南曲靖655000

出　　处：《电力系统装备》2021年第13期35-37,共3页Electric Power System Equipment

摘　　要：由于锁相环性能的好坏将直接影响DVR的补偿效果,针对传统基于二阶广义积分器的锁相环(SOGI-PLL)存在谐波抑制能力差、抗直流干扰能力不强的问题,文章提出了一种基于改进型SOGI的锁相环结构。该结构将两个SOGI模块串联,可以很好地消除电网存在的谐波分量以及直流干扰。仿真结果表明,所设计的改进型二阶广义积分器的锁相环具有锁相精度高、动态性能好的优点。Since the performance of the phase-locked loop will directly affect the compensation effect of the DVR,the traditional second-order generalized integrator-based phase-locked loop(SOGI-PLL)has the problems of poor harmonic suppression and weak antiDC interference ability,Proposed a phase-locked loop structure based on improved SOGI.This structure connects two SOGI modules in series,which can well eliminate the harmonic components and DC interference existing in the power grid.The simulation results show that the designed phase-locked loop of the improved second-order generalized integrator has the advantages of high phase-locking accuracy and good dynamic performance.

关 键 词：单相锁相环 二阶广义积分器 动态电压恢复器 电压暂降 滤波器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]